Mechanism for removing oil and sediment from crank casings and the like



Sept. 21 ,"1926.

P. B. HASKELL ET AL MECHANISM FOR REMOVING OIL M31) SEDIMENTFROM CRANK CASINGS AND THE LIKE Filed May 4 Wallerfilohls, maww Patented Sept. 21,1926.

. UNITED STATES (PATENT OFFICE.

PARKER 13. HASKELL. AND WALTER B. lJOI-ILE, OF LYNN, MASSACHUSETTS, AS- SIGNORS OF ONE-THIRD TQ SUSAN V. RUSSELL, OF CHELSEA, MASSACHU- SETTS.

MECHANISM For. REMOVINGDIL AND SEDIMENT FROM CRAN cAsrives AND THE LIKE.

Application filed May 4,

The present invention relates to draining devices for crank casings and has for its object the provision of means whereby either the sediment collecting in the bottom of the casing or the oil contained within said casing may be withdrawn readily without disp the casing which extend upwardly from turbing the casing itself. v

These objects are .attained by the mechanism illustrated in the accompanying drawings.

For the purpose of illustrating the invention, one preferred form thereof is illustrated in the drawings, this form having been found to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which the in vention consists can be variously arranged and organized, and the invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described except as required by the scope of the appended claims.

Of the drawings:

Figure 1 represents a vertical section of a crank casing embodying the principles of the present invention.

Figure 2 represents a horizontal section of a portion of the same on line 2, 2, on Fig; 1.

F igure 3 represents a vertical section on line 3, 3, on Fig. 2. T

Figure 4 represents a transverse vertical section on line 4, 4, on Fig. 3, and

Figure 5 represents a sectionof the inlet valve. I

Similar characters indicate like parts throughout the several figures of the drawlngs.

In the drawings, 10 is a crank casing having installed therein a splash trough 11, the inner end of which is supported by the lugs 12.

The bottom wall 13 of the casing 10 is inclined downwardly toward an elongated opening 14.

adapted to receive the frame 16. of a pump extending upwardly above the bottom wall 13 of said casing 10.

The pump 16 forms no partof the present invention and is therefore indicated only in dotted lines. I

The oil' in the casing 10 is forced b means of the pump lfithrough the lubricating sys- The casing .10 is also provided with another opening 15 which is cylindrical and is 1925. Serial No. 23,032.

tem of the engine to which the casing 10 is 55. connected. 2

VVhenthe pump is in operation the oil in the casing 10 circulates toward said pump and in order that the pump may be kept free from sediment .ribs 17 are'provided for the bottom 13 around the opening 15, one end of these ribs 17 connecting with the vertical wall of the casing, while'the opposite ends terminate at the opposite ends of the elongated opening 14.

As the sediment collects in the bottom of the casing 10 and is drawn towards the pump, it reaches a position over the opening 14 and passes therethrough into a pocket 18 in a rotatable tubular member 19, positioned in a cylindrical chamber 20 beneath said opening 14. I

The tubular member 19 is provided with passages 21, 22, in the opposite ends thereof, these passages being in alinement and their inner ends communicating with the pocket 18.

The outer end of the passage 22 is closed by means of a plug 23, and the outer end of the passage 21 has mounted therein a check valve 24, a section of which is shown in Fig. 5. 1

, valve member 24.

The passage 22 has a lateral discharge out-' let 28 extending therefrom to the periphery of the tubular member 19 and the chamber 20 has extending therefrom a discharge orifice 29, said outlet 28 and orifice 29 being in the same verticalplane. I

The opposite ends of the tubular member 19' have reduced cylindrical portions 30, 31 mounted in stufling boxes 32 which prevent any end movement to the tubular member 19 and effectually stops all leakage of oil around said reduced cylindrical portions 30,

V The normal position of thetubular member 19 is as shown in Figs. 1 and3, with the pocket 18 in register with the elongated opening 14. This permits any sediment in the oil within the casing 10 whlch settles into thebottom of the casing; to enter the pocket \Vhen sufficient sediment collects within this pocket to make it desirable to eject the same, the tubular member19 is turned about- The outer end of the check valve 26 is threaded as at 34 to receive a pipe from any suitable air pump, which when in operation will admit air to the pocket 18 and force the sediment through the passage 22, discharge outlet 28, and the discharge orifice 29.

As soon as all sediment has been removed from the pocket in this manner, the tubular member 19 is returned to its normal position ready to receive any further sediment which may settle into the bottom of the casing.

This operation removes most of the sediment from the oil in the casing, thereby making it possible to use the oil for a much longer time, but from time to time it is necessary to remove the oil itself and replenish the same with a new supply.

On engine trucks and the like, when this operation is to be performed, it is desirable to accomplish the discharge of the oil as quickly as possible so that the engine truck may be in readiness to respond to any sudden call.

'VVhen it is desired to remove the oil, the tubular member 19 is left in the position indicated in Figs. 1 and 3 of the drawings, and the plug 23 is removed from the outer end of the passage 22.

If air under pressure is then admitted through the passage 21, it will force the air through the passage 22 and cause the entire supply to be discharged more quickly, it be ing understood that during this operation the outlet 28 and orifice 29 are out of mg ister.

It will be seen, therefore, that by means of the mechanism shown and described, the sediment alone may be discharged from the casing very quickly and by a slight adjustment of parts the entire supply of oil in the casing may be withdrawn quite rapidly.

These operations may both be effected without in any manner disturbing the casing itself or the devices installed therein.

With the foregoing description, it is believed that the operation and many advantages of the invention will be thoroughly understood. v

Having thus described our invention, we claim 71. A casing having an opening in the bottom thereof communicating with a cylindrical chamber beneath the lowest part of said casing; a rotatable member disposed in said chamber and provided with a walled pocket extending partly through said member and the open end of which is adapted to register member disposed in said chamber andprovided with a walled pocket the open end of which is adapted to register with said opening under normal conditions; means for moving said member about its axis to close said opening; passages extending from the end walls of said pocket to the opposite ends of said rotatable member; and removable closures secured to said member and closing the outer ends of said passages. to

3. A casing having an opening in the bottom thereof communicating with a cylindrical chamber beneath said casing; a rotatable member disposed in said chamber and provided with a walled pocket the open end of which is adapted to register with said opening under normal conditions; means for moving said member about its aXis to close said opening; passages extending from the end walls of said pocket to the ends of said member and normally closed; and a lateral discharge outlet from one passage adapted to register with a discharge orifice in the bottom of the casing when said opening is closed. a

4. A casing having an opening in the bottom thereof and a cylindrical chamber communicating with said'opening; a rotatable tubular member in said chamber having a pocket intermediate its ends normally registering with said opening; a closing plug threaded to'one end of said tubular member; and a check valve in the opposite end of said member.

5. A casing having an opening in the bot tom thereof and a cylindrical chamber communicating with said opening and provided with a discharge orifice near-one end;. a rotatable tubular member 111 sald chamber.

6. A casing having an opening in the bottom thereof and a cylindrical chamberco'mmunicating with said opening; a rotatable tubular member in said chamber having a pocket intermediate its ends normally registering with said opening, said member having reduced. cylindrical ends; a closing plug threaded to one end of said tubular member; a check valve in'the opposite end of said member; and means surroundlng said reduced ends preventlng end movement of said member and leakage from said chamber.

7. A casing having its bottom wall inclined downwardly towards an opening therein and provided with a cylindrical chamber with which said opening communicates; a member in said chamber having a walled pocket normally registering with said opening; means at the opposite ends of said member preventing end movement thereof; means for rotating said member to close said opening; and means extending through said member from the end walls of said pocket through which the contents of said pocket may be discharged while the opening is closed.

8. A casing having its bottom wall inclined downwardly towards an elongated opening thereinand provided with a second opening to receive a pump; a member rotatable beneatlr said bottom wall having a pocket normally registering with said elongated opening; ribs extending upwardly from said bottom wall and surrounding the pump opening with ends at the opposite ends of said elongated opening; means for rotating said member to close the elongated opening said pocket may be discharged.

9. A crank casing having an opemng in the bottom thereof communicating with a cylindrical chamber beneath the lowest part of said casing; a member in said chamber provided with a walled pocket extending partly through said member and normally registering with said opening and adapted to collect sediment therein; means for movand means whereby the contents of I ing said member about its axis to close the v opening; and means associated with said member whereby the collected sediment may be discharged from said pocket under pressure while said opening is closed.

10. A crank casing having an opening in the bottom thereof communicating with a cylindrical chamber beneath said casing; a member in said chamber provided with a walled pocket normally registering with said opening; inlet and outlet passages from said pocket; a check valve at the end of the inlet passage; and a discharge orifice communicating with said outlet passage whereby the contents of the casing may be discharged under pressure.

Signed by us at 746 Old South Bldg; 

